Scale.



SCALE. APPLICATION ,FILED OCT. 21,1911.

Patented Jan. 4, 1916.

3 SHEETS-SHEET l.

/ Fi'gJ.

F. H. BUCKINGHAM.

lSCALE. APPLICATION FILED ocT.21, 1911.

3 SHEETS-SHEET 2- 3 ,H R55. Z, 17 25 13 4 50 58 66 82 90 n-109 I.

' y Pwnc PER POUND.

/S s ai Patented Jan. 4, 1916.

F'. H. BUCKINGHAM.

SCALE.

APPLicATlou ,man ocr. 21, 1911.

-Patented Jan. 4, 1916.

3 SHEETS-SHEET 3- rREMoNr H.' BUoxrNGHAM, vor

nnrnorr, MICHIGAN,

- PUC'TING `SCALE k(SOllIlEtAlll'-Y, LIMITED, OF-XDETROIT, MCHIGANZ SCLE.

To all lwhom, imag concern.'

Be it known that I, FREMONT H.BUCK- INGHAM, a. 'citizen of the United States, 'residing at`V Detroit, in the county of Wayne and State of Michigan, have invented a new and useful Scale, a specification. L

This invention relates to scales adapted to indicate the value of the article placed upon the load-receiver, and its object is' t0-pro vide a computing scale which shall'be sim ple, delicate and accurate.

4Thls invention consists, in combination with the frame, platform, and lever mechanismof the scale, of aA transparent revoluble disk upon which suitable numbers are printed, means for projecting a beam. of light through this disk, a screen to lreceive this light, and means for 'operatively connecting this disk with the lever mechanism ofthe scale in such a manner that the disk will be revolved'in proportion to the load ,onJ

' the platform.

In the accompanying drawings Figurel 1 is a vertical section of a scale embodying this inventlon. Flg. 2 1s a horlzontal sectlon on the line- 22 of Fig. 1. Fig. 3 'is an eleva-l tion of the shutter. *Fig LLis an enlarged elevation of the transparent disk showing some ofthe characters in position. Fig. 5 is an elevation of the screen showing figures projected thereon. Fig. 6l is a horizontal section of an indicatingmechanism wherein the value characters 'are placed on a trans- 'parent cone, and Fig. 7, is a similar section wherein the characters are on a transparent cylinder. .,Fig. 8 isa horizontal section ofy an indicating mechanism wherein the character bearingv disk is illuminated from the front so that they lmaybe reflected through :1n-opening in the case. Fig. 9'is a vsection on the line 9-9 ofFig. `8.

Similar reference characters refer to like parts tliroughout the several views. L

The delicacy of `a computing scale may be said to vary inversely as the power required to overcome the friction of the movable parts. In a scale providedwlth a c omputing drum upon which are printed values ,corresponding7 to the indicated lprices per pound,y the friction of this drum and its axle is often considerable. As a portion of the load is required to overcome this friction, such scales are theoretically inaccurate, a1-

Specification of I'iettef's Patent. ,L i Y lApplication tiled October 21, 191'1. Serial No. 655,87?.

ofy which' theffollowing isi In this scale, the base l, pedestalsx2, main f sponds tothe figures though thev imay be sufiiciently accurate Yfor present `practical purposes.

r /Fi' The presentd invention relates to a con-f AssIGNoB 'ro STANDARD com Patented JanA, 1916.

struction wherein the indicating mechanism 1 1, so light,l and so easily moved, tha/t theo-V retical accuracy is Vvery y nearly approached.

lever `3 having rear pivots 4 and intermestem 8 connect` check-rod and resting on the pivots i\,the platform. 9', and

the load reslstingspring 10 ,connecting to the plvots 11 and to the'cross-bar 12 are all v of wellknown `design and construction. A

pedestal 13 extendsupward from the base 1 and carries the shell or case-14. Mounted lin the case 14 so it may revolve freely, is ashaft lcarrying a transparent disk 16 and a. gear 17. A rack-bar 18 engages this gearand connects at its lower end .to the lever 3. This diskk 16n is of any trans,- parent material,- preferably of glass, and may be quitersmall, a disk two inches in diameter being usually suflicient. Theseries of figures, of which a portion are indicated in Fig. 4, are printed on this' disk, preferably, by the photographic process, toindicate the values of the article on .the scale platform, whose weight 'correforming` the outer circle on the disk. Mounted in the drum isa ,shutter 15;) having aslot 20 through which a kbeam of light from the electric light or other burner 21 may pass. Lenses 22 are preferably mounted at the inner end of a tube 23 to cause the emerging rays of light to be parallel as they pass through this slot 2O, and through the transparent disk 16. At

the oppositelendiof the drum are the lenses -24 and 25, properly mounted in a tube 26.

, At any desired location is a pedestal4 28 ,of proper height which-carries ajframe 29 in its upper end. In-'this frame is mounted a 'screen 30 preferably of ground glass, on

which are printed `the characters 31 to rep" resentthe prices per pound at which the.

goods are to be sold. It is to be understood that these prices may vary according to the necessities of the dealer. 'Acrossthis screen a line`33 maybe drawn toiindicate the exact location on the screen where the weights and pricesshould be read. In the drawings, this pedestal 28 is shown to be secured ymay lbe placed wherever desired,and any...

' as ingFig. 7. In Fig. 6,.the case 40 has der 67 of transparent material on which the k .67, through the slot 69'in the shuttert 70,

Hector 75.

that by swinging the drurn around 'the rack- A bar as an axis, light may be p'ojected 1n 'any desired direction. ,The construction of l the lamp and lenses maybe varled 'as desired. f

ldisk and then by means of the lenses' 24 and be such that the body of the disk is opaque and the characters are transparent. It may end of 4a tube 48, passes through proper which is mountedthe gear -84 which meshes `with aj,rack`=bar 85, and a-disk86 on which the characters are printed reversely. A shutter 87 is'provided with a slt 88. ,'lwo 1am s 89 aretobe preferred,and their light is -a 1 thrown nto the disk through theA slot 88 in the shutter by means of thereii'ectois to 4-one vend of the base, but in practice it convenient distance from and at anydsiredf' angle to the scale. It wlll be readlly'seen f l y and passes through the lens 92 to the screen. i The beaml of light from the lamp 21 will;y pass'through the opening 20 in the shutter 19, and through a narrow4 section of the horizontal cross section. v

Having now explained my 'cen'structioin `What I claim as my invention and desire to I secure by Letters Patent is :s-

25, Will be projected onto the screenfBO; and

. 1. In a. scale, the .combination with fthe because of the lenses .and their positions, these figures which are minute on the disk may be large on the screen so that there will be no difliculty in reading theweights and the Values of the articles. The figures 31 will be properly spaced to cordinat/e With the figures on the disk that are projected on the screen.

YIf desired, lthe printing. on/ the disk. may

said case having an opening therein, a shaft revolub-ly mounted therein; a transparent disk'mounted on' the shaft and having a 'f series of figures thereon, arranged in concentric rings, apsource of light Within the `disk and out throughthe opening 1n, said case, means connecting said shaft and lever readily be seen. that theindicating mechato cause the4 shaft to revolve'as the-load on nism and lenses may be so mounted aste' project the characters in any desired direction, means being provided for reliecting the light in. any desired manner, and the screen may be transluscent so the characters may fbe read from the opposite side.

Thedescription this far has considered the memberA carrying the characters as Va transparent, flat, circular plate. But it may be desirable to have this member of other forms, conical as in Fig. 6` or cylind'rical/ figures on theidisk may be projected, and a group of figures on thedis'k' thus projected.

2. Ina scale, the combinationl with the base, lever, load-receiver and counterbalancing means, a case having an opening therein through which light may pass, a transparent revoluble disk within the case, said disk having figures .thereon representing Weights nd values, means connecting the disk and t e lever Wherebythe disk is'caused to ro- 'I tate vin one 'direction when the load on the lever is increased, means to project.` light through the disk, a shutter Within the case lfor determining the figures-on the disk thus bearings-A41 -and 42 for the shaft 43, lWhich shaft carries the gear 44vvhich meshes with arack bar 45, and a cone 46 of some transparent material' such as glass or Celluloid. The light from alamp 47, mounted' in the light.

3: consisting of ascalemechanism, a case, a movable plate of transparent material bear- 'lenses 49, through the cone 46, through the opening 50 inftheffshutter 51, through the lenses 52 and 53 i'n the-tube 54,.and then to 'thescreen as before described.

In Fig. 7, the case 60 has bearings 61 and 62 for the shaft 63, which shaft carries the gear 64 which meshes with arack bar 65, and aadisk 66, to which is secured a cylinto said` plate and scale mechanism whereby movement of the scale mechanism will change the position of the means to project light throughthe plate "onto the screen, 'and a shutter within the casefor determining the figures on the plate thus projected.

4,. In a scale, the combination with a base, `lever, load-receiver' and counterbalancing means, of a case mounted on the base, ashaft revolubly mounted therein, a disk mounted ,on the shaft and. having v figures thereon arranged in concentricr rings, a soui'ce of light Within thevcase which fallsV on said disk and proceeds therefrom, a 4lens to project said light, means to receive said light, a shutter within thecase to determine the grouplof value characters are printed. The light frm a lamp 68 passes through the`cylinder through the lenses 71 and 72 mounted in the tube`73 and then to the screen asbefore described. The bearing 61 may be carried by a bracket'74, and the lamp may have a re- Y The device vshown in 8 and 9 is ccnl,4 structed on 'the theory that reflectedimages may be projected on a screen.l The case 80. has bearings 81 and 82 for the shaft 83, on

The reflectors 90 are preferably elliptical inv i pase, 1lever, load-receiver and'counterbalanclng means, of a case mounted on thevbasey the scale increases, a screen upon which said projected, and means for receiving said.`

J f Means for indicating Welght or -values 110 90.' From .the disk,r the light is reflectedv i case, means to project light through the l i shutter within the case/for determining the ing figures Within the case, means connected I late, a screen,

leol

`figures on the disk thus projected, and means to operatively connect the shaft and scale lever.

5. In a scale," the combination with a base,

lever, load-receiver, andy counterbalancing means, of a case mounted on the base, a shaft revolubly mounted therein, means for operatively connecting the shaft and lever, a transparent member on said shaft and having a series of graduations arranged in concentric rings, a source of light, means to project the light through the transparent member and out of the case, a screen to receive the light thus projected, and a shutter Within the -c'ase `for determining the graduations thus projected.

6. In a scale, theeombination of abase, lever, load-receiver, and counterlbalancing means, of a case mounted on the base, a'shaft revolubly mounted therein, means to operatively connect saidy shaft and lever 'to n cause the shaft to revolve as the load on the scale increases, a member mounted on said Shaft and bearing figures arranged in rows, a source of light within the case which light falls on said member and proceeds therefrom, means for projecting said light, a

Screen upon which the figures may be pro-V jected, and a shutter withinY the case to .dee

termine the figures thus projected; y

7. In a device for indicating values, the

combination of a scale mechanism, a case,A

a movable member Within the case having value characters on its surface, means connecting the movable member and the scale mechanism whereby the movable member is caused to move in. one dirertionavhen the load on the scale'L mechanism is increased, ay

source of light which light falls on said member and proceeds therefrom,`a screen,t

means for projecting said light onto the screen, and a shutter within the case for determining the characters thus projected.

l8. In a scale. the combination with the base lever and load-receiver` of a case secured to the base, said case having an open'- ing.therein, a shaft revolubly mounted therein, a transparent member mounted on the shaft and having a series of figures thereon, a source of light within the case, means to project light through-thc transparentmember and out through the opening in the case,means connecting the Yshaft and f lever to cause the shaft to revolve asthe load on'` the scale inpreases,2 a screen upon which said figures on the disk may be projected, and a. y termining the figures on the disk thus projected.

9. In a scale, the combination `with the,

base, lever and load .\receiver, of a' case scy cured to the base, said ease having an openingl therein, a movable member therein,.a

shutter within the casefor detransparent member movable with the movable member and having figures thereon, a source of' light, means to project light throughy the transparent member and out throughthe opening in thel case, means connecting the movable member and the lever to cause the movable member to move as the load on the scale increases, a screen upon which said figures on the movable member may be projected, and a shutter Within the case for determining the figures on the movable member thus projected.

10. In a scale, the combination with a support, 1a load receiver supported thereby, a case, a movable member mounted on .the support, a rtransparent member, within the case and movable With the movable member determining the figures on the transparent member thus projected.

- 11. In a scale, the combination with a support, a, load receiver supported thereby, a

l case, a movable membermounted on the support, a second member Within the case and movable with the first movable member and having figures thereon, a source of light,

'means to project light onto the second movable member, means connecting the movable members and the load receiver to cause the movable membersto move as the load on the scale increases, a screen upon which said figures on Vthe second movable member may be projected, and a shutter within the case for determining the figures on the second movable member thus projected.

12. `In a scale, the combination of a support, a loa'd receiver supported thereby, a case,.'a revolubleshaft mounted on the support, a member Within the case, said member being mounted on the shaft to move therewith and having a series of figures thcreonra source of' light, means to project light onto the member on the shaft, means connecting the shaft and the load receiver rto cause the shaft to rotate as the load on the scale increases, a screen upon which said figures on the member may be projected, and

a shutter within Athe case for determininging witnesses.

FREMONT H. BUCKINGHAM. Witnesses EDWARD N. IAGELSEN,

rHUGo WV. KRELNBRING. 

